Paper Title:
The Effection of Stress Path on the Rock Relaxation Area of Large-Section Tunnel
  Abstract

Construction of large-section tunnel leads to changing of rock stress and comes about complicated stress-path, which causes continuously redistribution of rock stress with changing of stress path, leads expansion and change of plastic zone and brings relaxation-are avariation between left guide hole and right guide hole. The paper firstly introduced the construction situation of four-lane tunnel, and then analyzed its developments of design and construction at present. Relying on Dragon Head Mountain expressway tunnel with eight-lane and two way in Guangzhou, analyzed and discussed stress path, rock relaxation area effect on large-section tunnel by using site measured data from multi-displacement meter and numerical calculation result of rock relaxation area in different excavations. At the same time, verified the rational range of rock relaxation-area of large-section four- lane tunnel, which made the rock load of large-section tunnel to be studied further.

  Info
Periodical
Advanced Materials Research (Volumes 368-373)
Chapter
Chapter 6: Geotechnical Engineering and Underground Space Structure
Edited by
Qing Yang, Li Hua Zhu, Jing Jing He, Zeng Feng Yan and Rui Ren
Pages
2859-2865
DOI
10.4028/www.scientific.net/AMR.368-373.2859
Citation
Z. X. Yan, Y. G. Fang, B. Wu, "The Effection of Stress Path on the Rock Relaxation Area of Large-Section Tunnel", Advanced Materials Research, Vols. 368-373, pp. 2859-2865, 2012
Online since
October 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Ming Yi Zhang, Hai Lei Kou, Wei Zhang
Abstract:Pressured multi-branch bored pile is a new pile on the basis of squeezed branch reaming pile improved, it is a new pile technology focus on...
3167
Authors: Chang Feng Yuan, Guang Ming Yu, Qian Qian Zhao, Jing Bo Zou, Xiao Ming Guan
Abstract:Underground engineering construction in the city can not avoid bringing about perturbation on the surrounding rock and soil and then endanger...
3606
Authors: Si Si Liu, Xue Liang Jiang
Chapter 1: Geological and Geotechnical Engineering
Abstract:According to energy principle, numerical methods of axial force and displacement of tension-type anchor are derived. Firstly, mechanism of...
63